Title :
Ultra high resolution spaceborne SAR processing
Author_Institution :
Land & Air Syst. Div., Norwegian Defence Res. Establ., Kieller, Norway
fDate :
1/1/2004 12:00:00 AM
Abstract :
The accuracy requirements of the azimuth signal for spaceborne synthetic aperture radar (SAR) processing is analysed. Degradations of simulated extended scenes and point targets are studied at high squint or if erroneous Doppler parameters are used. At a resolution less than 1 m for X-band it is shown that the azimuth signal for spaceborne SAR geometry should be used. It is found that the fourth-order extended exact transfer function (EETF4) is a good candidate for demanding SAR processing.
Keywords :
radar signal processing; spaceborne radar; synthetic aperture radar; transfer functions; EETF4; SAR geometry; X-band radar; azimuth signal accuracy requirements; erroneous Doppler parameters; fourth-order extended exact transfer function; spaceborne SAR processing; squint; synthetic aperture radar; ultra high resolution SAR; Azimuth; Degradation; Geometry; Layout; Signal analysis; Signal processing; Signal resolution; Spaceborne radar; Synthetic aperture radar; Transfer functions;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2004.1292176
